Theory 32/Telecommunications Engineering
Spectrum Sharing Is a Tolerance Ratio
The claim
Whether two services can share a band is set by the ratio of the incumbent's interference tolerance to the entrant's power, not by the entrant's power alone.
01Mechanism
Coexistence requires the received interference to stay below the tolerance; the ratio sets the separation or power reduction needed.
02Predictions
- P1Coexistence should track the ratio.
- P2Power alone should mispredict across receivers.
03Refutation
Coexistence tracking power would remove the tolerance term.